Top:Government:Executive Branch:Departments and Agencies:Department of Commerce:United States Patent and Trademark Office

• General Information Concerning Patents
• General Information Concerning Trademarks
• Patent Cooperation Treaty Information - downloadable Patent Cooperation Treaty information and blank forms for filing and prosecuting international and national stage applications in the United States Receiving Office and the United States Designated/Elected Office
• UC Berkeley's Patent Office
• United States Patent and Trademark Office